Modular heating furnace for easy positioning assembly

Abstract

The utility model relates to petrochemical equipment technical field, concretely relates to a modular heating furnace convenient to position assembly, including the radiation chamber, the convection chamber and the chimney arranged in proper order from below to above, the convection chamber includes a plurality of convection modules of upper and lower laminations, a plurality of convection modules all include support column, support column includes the flange plate and the web that whole is "G" character shape, and the web connects the middle part of two flange plates, the support column in the upper and lower adjacent two convection modules is respectively the upper column body and the lower column body that align, and the upper end of lower column body is welded and fixed with the column head board, and the upper column body is installed in the top of column head board, the convection chamber still includes the positioning assembly for connecting the upper column body and the column head board, and all upper column body and corresponding column head board are locked by positioning assembly and then are welded each other after. Compared with the prior art, can complete the group of different convection modules between support column and welding, reduce the influence of cumulative error on installation accuracy, improve installation accuracy, improve operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of petrochemical equipment technology, specifically to a modular heating furnace that is easy to position and assemble. Background Technology

[0002] like Figure 1 As shown, the existing heating furnace mainly consists of a radiation chamber 100, a convection chamber 200, a chimney 300, and a connecting component 400. The convection chamber 200 is located at the top of the radiation chamber 100, the chimney 300 is located at the top of the convection chamber 200, and the connecting component 400 connects the radiation chamber 100 and the convection chamber 200.

[0003] The convection chamber 200 and radiation chamber 100 are generally large in size, exceeding the limitations of road transportation. Therefore, the convection chamber 200 and radiation chamber 100 are generally prefabricated in a modular factory and assembled on-site in locations where transportation is not restricted.

[0004] The prefabricated convection module 201 includes a steel structure, lining, heat exchange elements, and support columns 500 for the heat exchange elements. A single convection module 201 can be transported to the installation site by land.

[0005] During the modularization of the convection chamber, situations may arise where the support columns are segmented into 500 sections. For example... Figure 1 The convection chamber 200 shown is divided into five layers. Each layer of convection modules 201 corresponds to a segment of support columns 500. The interfaces A, B, C, and D between adjacent convection modules are also the positions of the support column segments. Generally, a single convection module 201 contains at least four support columns 500, while larger modules have more support columns 500. During the on-site assembly of multiple convection modules 201 into the convection chamber 200, the support columns 500 at the corresponding positions need to be aligned and installed. After installation, the entire convection chamber 200 forms a rigid whole. The convection chamber 200, together with the radiation chamber 100 and the external frame, constitutes the main body of the heating furnace, bearing the self-weight, wind load, seismic load, and other loads of the entire heating furnace during operation.

[0006] To meet design requirements, the installation accuracy of the support columns is very high. Generally, after installation, the verticality of the entire support column should not exceed 1 / 1000 of the total height of the support column, and should not exceed 20mm.

[0007] The length deviation requirement for a single convection module is generally ±5mm, and the width deviation requirement is ±3mm. This can lead to a relatively large vertical deviation of the support columns for different modules. The cumulative error of multiple modules can exceed the verticality requirement of the entire convection chamber, making installation difficult. Utility Model Content

[0008] In view of the above-mentioned technical problems, the present invention provides a modular heating furnace that is easy to position and assemble.

[0009] To achieve the above objectives, this utility model provides the following technical solution: A modular heating furnace for easy positioning and assembly is provided, comprising a radiation chamber, a convection chamber, and a chimney arranged sequentially from bottom to top. The convection chamber includes multiple convection modules stacked vertically, each of which includes a support column. The support column comprises an I-shaped flange and a web, with the web connecting the middle of two flanges. The support columns in two adjacent convection modules are aligned upper and lower columns, respectively. A column head plate is welded to the upper end of the lower column, and the upper column is installed on top of the column head plate. The convection chamber also includes a positioning assembly for connecting the upper columns and column head plates. All upper columns and corresponding column head plates are locked together by the positioning assembly and then welded to each other.

[0010] As a further optional solution, the positioning assembly includes a positioning plate and a bolt assembly. The positioning plate is L-shaped, with one side of the positioning plate abutting against the top surface of the column head plate and the other side of the positioning plate abutting against the upper column. The positioning plate and the column head plate are respectively provided with aligned through holes, and the bolt assembly passes through the through holes to fix the column head plate and the positioning plate.

[0011] As a further alternative, the through hole is a smooth hole, through which the bolt of the bolt assembly passes and is fitted with a nut.

[0012] As a further alternative, the through hole is a threaded hole into which the bolts of the bolt assembly are screwed.

[0013] As a further alternative, the positioning plate is positioned to fit against the web of the upper column.

[0014] As a further alternative, bolt assemblies are also used to fix the positioning plate to the web of the upper column.

[0015] As a further optional solution, the positioning components are provided on both sides of the web.

[0016] As a further optional solution, the web and flange of the upper column are respectively provided with the positioning components.

[0017] As a further alternative, the through hole can be a round hole or a long hole.

[0018] As a further optional solution, the positioning plate is welded and fixed to the column head plate and to the upper column.

[0019] The beneficial effects of this utility model are: This utility model discloses a modular heating furnace that is easy to position and assemble. Compared with the prior art, it can quickly complete the assembly and welding between the support columns of different convection modules, reduce the impact of cumulative errors on installation accuracy, improve installation accuracy, and improve work efficiency. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings. However, the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the modular heating furnace in the background art, and this diagram is used in the embodiments.

[0022] Figure 2 This is a front view of a first embodiment of the upper column, lower column, and positioning component.

[0023] Figure 3 This is a side view of a first embodiment of the upper column, lower column, and positioning assembly.

[0024] Figure 4 This is a top view of a first embodiment of the upper column, lower column, and positioning assembly.

[0025] Figure 5 This is a front view of a second embodiment of the upper column, lower column, and positioning component.

[0026] Figure 6 This is a side view of a second embodiment of the upper column, lower column, and positioning assembly.

[0027] Figure 7 This is a top view of a second embodiment of the upper column, lower column, and positioning assembly.

[0028] Figure 8 This is a top view of a third embodiment of the upper column, lower column, and positioning assembly.

[0029] Figure 9 This is a schematic diagram of the first to third steps of the assembly process of the upper and lower columns in the embodiment.

[0030] Figure 10 This is a schematic diagram of the fourth step in the assembly process of the upper and lower columns in the embodiment.

[0031] Figure 11 This is a schematic diagram of the fifth step in the assembly process of the upper and lower columns in the embodiment.

[0032] Figure 12 This is a schematic diagram of the sixth step in the assembly process of the upper and lower columns in the embodiment.

[0033] Figure 13 This is a schematic diagram of the seventh step in the assembly process of the upper and lower columns in the embodiment.

[0034] Figure label: Radiation chamber 100, convection chamber 200, convection module 201, chimney 300, connecting component 400; Support column 500; Upper column 1, lower column 2, capital plate 3, flange plate 121, web plate 122; Positioning component 4, positioning plate 41, bolt assembly 42. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0036] This embodiment presents a modular heating furnace that is easy to position and assemble, such as... Figures 1 to 4 As shown, the furnace includes a radiation chamber 100, a convection chamber 200, and a chimney 300 arranged sequentially from bottom to top. The convection chamber 200 includes multiple convection modules 201 stacked vertically, with each layer of convection modules 201 arranged along a U-shaped trajectory to form the furnace chamber. Each convection module 201 includes a support column 500, and the support columns 500 of adjacent layers are fixed together. Each support column 500 includes a flange plate 121 and a web plate 122 that are integrally formed in the shape of an "I" and are of steel structure. The web plate 122 connects the middle of the two flange plates 121.

[0037] In two adjacent convection modules 201, the support columns 500 are defined as aligned upper column 1 and lower column 2, respectively. A column head plate 3 is welded and fixed to the upper end of the lower column 2, and the column head plate 3 is approximately horizontal. The upper column 1 is installed on top of the column head plate 3. The convection chamber 200 also includes a positioning assembly 4 for connecting the upper column 1 and the column head plate 3. After all the upper columns 1 and their corresponding column head plates 3 are locked together by the positioning assembly 4, they are then welded together. Compared with existing technologies, this method enables rapid assembly and welding of the support columns 500 between different convection modules 201, reducing the impact of cumulative errors on installation accuracy, improving installation precision, and increasing work efficiency.

[0038] like Figures 2 to 4 As shown, the positioning component 4 includes a positioning plate 41 and a bolt assembly 42. The positioning plate 41 is L-shaped. One side of the positioning plate 41 is attached to and pressed against the top surface of the column head plate 3, and the other side of the positioning plate 41 is attached to and pressed against the upper column 1. The positioning plate 41 and the column head plate 3 are respectively provided with relatively aligned through holes. The bolt assembly 42 passes through the through holes to fix the column head plate 3 and the positioning plate 41.

[0039] In practice, the through hole is a smooth hole. The bolt of the bolt assembly 42 passes through the through hole and is fitted with a nut. The through hole is a round hole with an inner diameter matching the outer diameter of the bolt, or it can be an elongated hole. Alternatively, the through hole can be a threaded hole. The bolt of the bolt assembly 42 is screwed into the through hole, eliminating the need for a nut in the bolted connection structure.

[0040] Figures 2 to 4 In the middle, the positioning plate 41 is attached to the web plate 122 of the upper column 1 for positioning, that is, the positioning plate 41 is only pressed against the web plate 122 but not locked.

[0041] Of course, it can also be like Figures 5 to 7 As shown, the positioning plate 41 is also fixed to the web plate 122 of the upper column 1 by bolt assembly 42. Here, the positioning assembly 4 is provided on both sides of the web plate 122.

[0042] In other embodiments, such as Figure 8 As shown, the web plate 122 and flange plate 121 of the upper column 1 are respectively provided with the positioning component 4.

[0043] After the positioning components 4 position all the upper columns 1 and the corresponding column head plates 3, the positioning plate 41 and the column head plate 3 are welded and fixed together in the welding process.

[0044] For the installation process, please refer to... Figures 9 to 13 As shown, given that the shapes and structures of the upper column 1, lower column 2, and positioning component 3 have already been described in detail above, the process steps will not be labeled again. The specific process steps are as follows: First, the upper convection module 201 is hoisted onto the top of the lower convection module 201. The diagram shows ten sets of support columns 500, labeled ① to ⑩. At this point, multiple upper columns 1 are placed on the corresponding lower column head plates 3. Due to manufacturing errors between different convection modules 201, not all upper columns 1 can be placed perfectly on the corresponding lower column head plates 3 without any offset; at least one upper column 1 has a lateral and / or axial offset from its corresponding head plate 3.

[0045] Second, adjust the overall position of the upper convection module 201 so that the support columns 500 at the four corners of the upper convection module 201 meet the alignment conditions.

[0046] Third, such as Figure 9 As shown, install the positioning components 4 corresponding to the four corner support columns 500. If installation is not possible due to manufacturing errors, tools such as jacks and pry bars can be used to adjust columns ① and ② longitudinally and laterally. The solid arrows in the figure indicate the adjustment direction, and the same applies below. Then, make corresponding adjustments to columns ③ and ④, and then install the positioning components 4 on one side of the corresponding support column 500.

[0047] Fourth, such as Figure 10 As shown, adjust columns ⑤ and ⑥ in sequence. After the adjustment is qualified, install the corresponding single-sided positioning components 4 to perform longitudinal and lateral constraints. Similarly, install the single-sided positioning components 4 for columns ⑦ and ⑧.

[0048] Fifth, such as Figure 11 As shown, the double-sided positioning components 4 are installed on both sides of the web plate 122, that is, the positioning components 4 are installed on both sides of the middle column 9 and column 10.

[0049] Sixth, such as Figure 12 As shown, further local adjustments were made to columns ① to ⑧. After the adjustments were completed, the positioning component 4 on the other side was installed.

[0050] Seventh, such as Figure 13 As shown, depending on the situation, additional positioning components 4 are added to the parts that require local reinforcement.

[0051] Eighth, complete the welding between the support columns 500 of the upper and lower convection modules 201, so that the support columns 500 are spliced ​​and fixed.

[0052] Ninth, allow it to stand for a period of time to release the residual stress between the upper and lower support columns by 500 mm; local heat treatment or other methods can also be used to release the residual stress.

[0053] In the description of this utility model, it is obvious that the described embodiments are only a part of the embodiments of this utility model, and not all of them. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0054] Therefore, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0055] In the description of this utility model, it should be noted that the terms "middle," "upper," "lower," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0056] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

Claims

1. A modular heating furnace for easy positioning and assembly, comprising a radiant chamber (100), a convection chamber (200), and a chimney (300) arranged sequentially from bottom to top, wherein the convection chamber (200) comprises multiple convection modules (201) stacked vertically, and each of the multiple convection modules (201) includes a support column (500), characterized in that: The support column (500) includes an overall "I"-shaped flange (121) and a web (122), with the web (122) connecting the middle of the two flanges (121); the support columns (500) in the two adjacent convection modules (201) are respectively aligned upper column (1) and lower column (2), with a column head plate (3) welded and fixed to the upper end of the lower column (2), and the upper column (1) installed on the top of the column head plate (3); the convection chamber (200) also includes a positioning component (4) for connecting the upper column (1) and the column head plate (3), and all the upper columns (1) and the corresponding column head plates (3) are locked together by the positioning component (4) and then welded together.

2. The modular heating furnace for easy positioning and assembly according to claim 1, characterized in that: The positioning assembly (4) includes a positioning plate (41) and a bolt assembly (42). The positioning plate (41) is L-shaped. One side of the positioning plate (41) is attached to the top surface of the column head plate (3), and the other side of the positioning plate (41) is attached to the upper column (1). The positioning plate (41) and the column head plate (3) are respectively provided with through holes that are aligned with each other. The bolt assembly (42) passes through the through holes to fix the column head plate (3) and the positioning plate (41).

3. A modular heating furnace for easy positioning and assembly according to claim 2, characterized in that: The through hole is a smooth hole, and the bolt of the bolt assembly (42) passes through the through hole and is fitted with a nut.

4. A modular heating furnace for easy positioning and assembly according to claim 2, characterized in that: The through hole is a threaded hole, and the bolt of the bolt assembly (42) is screwed into the through hole.

5. A modular heating furnace for easy positioning and assembly according to claim 2, characterized in that: The positioning plate (41) is positioned in contact with the web plate (122) of the upper column (1).

6. A modular heating furnace for easy positioning and assembly according to claim 5, characterized in that: The positioning plate (41) is also fixed to the web plate (122) of the upper column (1) by bolt assembly (42).

7. A modular heating furnace for easy positioning and assembly according to claim 5 or 6, characterized in that: The positioning components (4) are provided on both sides of the web plate (122).

8. A modular heating furnace for easy positioning and assembly according to claim 2, characterized in that: The upper column (1) has the positioning components (4) on its web (122) and flange (121).

9. A modular heating furnace for easy positioning and assembly according to claim 2, characterized in that: The through hole can be a round hole or a long strip hole.

10. A modular heating furnace for easy positioning and assembly according to claim 1, characterized in that: The positioning plate (41) is welded and fixed to the column head plate (3) and to the upper column (1).

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